// Copyright 2004-2010 Castle Project - http://www.castleproject.org/
// 
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// 
//     http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

namespace Fas.Tem.Runtime.Parser.Node
{
    using Fas.Tem.Util.Introspection;
    using System;

    /// <summary>
    /// Returned the value of object property when executed.
    /// </summary>
    public class EnumValueExecutor : AbstractExecutor
    {
        protected Introspector introspector;

        public EnumValueExecutor(IRuntimeLogger r, Introspector i, Type type, string propertyName)
        {
            runtimeLogger = r;
            introspector = i;

            Discover(type, propertyName);
        }

        protected internal virtual void Discover(Type type, string propertyName)
        {
            try
            {
                value = Enum.Parse(type, propertyName, true);
            }
            catch (Exception ex)
            {
                runtimeLogger.Error(string.Format("EnumValueExecutor: {0}", ex));
            }
        }

        /// <summary>
        /// Execute property against context.
        /// </summary>
        public override object Execute(object o)
        {
            return value;
        }
    }
}
